About this replacement
Angelcare AC1300 Series — 3.7V Li-Polymer Replacement Battery (1ICP5/46/45)
This 3.7V, 800mAh Li-Polymer battery replaces the OEM part 1ICP5/46/45 in the Angelcare AC1300 parent unit. It fits the AC1300, AC1300-D, and AC1320 monitor variants. The parent unit is the handheld display caregivers carry around the home while the camera unit stays in the nursery.
- AC1300, AC1300-D, and AC1320 compatibility: All three variants share the same parent unit housing, connector pinout, and BMS handshake protocol — that is why one cell fits across the range. Swapping between models does not require any firmware change or reconfiguration.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the AC1300 parent unit. The BMS accepted the cell without fault codes, completed a full charge cycle, and held voltage under the screen-on and wireless-active load simultaneously.
- Wireless re-pair after swap: The AC1300 parent unit loses its link to the camera unit when battery power drops to zero during a swap. After fitting this battery, charge the unit fully before powering on, then follow the pairing sequence in your manual to restore the wireless connection to the nursery camera.
Why the AC1300 parent unit drains faster overnight with screen active
The AC1300 parent unit runs its display, audio receiver, and wireless radio simultaneously during overnight monitoring. That combined load draws significantly more current than standby mode. The 800mAh cell in this unit was sized by Angelcare for typical monitoring use with the screen timeout enabled. Leaving the screen permanently on through the night is a sustained high-draw condition — enable the screen timeout function in the monitor settings to bring overnight current draw back within the cell's rated discharge curve.
Parent unit shows reduced range after a battery replacement
The AC1300's wireless radio output is voltage-sensitive — at low state of charge, the radio transmits at reduced power, and the link to the camera unit becomes unstable or drops out at distances that previously worked fine. This is not a pairing fault or a defective cell. Charge the parent unit fully before testing range. A fully charged cell sits at approximately 4.2V; test signal strength only once the unit has completed a full charge cycle at that voltage.